Frame for electric locomotives



l 1,622,074 Mafeh 22 1927 H. v. waLLE ET Al- FRAME FOR ELECTRIC LOCOMOTIVES Filed Aug. 25, 1925 Patented ar. 22, lid?.

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.application tiled August 25, i925.

Serial No. 52,396.

'lhe invention relates particularly to in- 6 near the middle, thus providing two sepategral cast frames for small electric locomotives of the type commonlv used in mines. 'lhe principal object of the invention is to provide a cast frame having various necessary parts of the locomotive structure cast integrally therewith, the formation of the frame being such as to provide maximum strength in proportion to the weight. Further objects will be apparent from the following specification and claims.

ln the accompanying drawing there is shown the embodiment of the invention which is now deemed preferable, but it will be understood that various changes and substitutions may be made within the scope of the claims without departing from the spirit of the invention.

Uf the drawing:

Fig. 1 is aplan view of a locomotive frame. i

nig.. 2 is a side view.

Fig. 3 is a transverse sectional view taken along the line 3-3 of Fig. 2.

Figs. 4 and 5 are fragmentary plan and side. views similar respectively to Figs. 1 and2, but showing an alternate form of the invention.

Fig. 6 is a fragmentary sectional View taken along the line 6-6 of Fig. 2.

Fig. 7 is a fragmentary sectional view similar to iF ig. 6 and showing an yalternate form of the invention.

Referring to the drawing, 1 renresents as an entirety the locomotive frame which is an integral steel casting. lhe frame comprises main side sections 2. 2 and end sections 3, 3. I

Each of the side sections 2. 2 is provided with two V*recesses d, d adapted respectively to receive the bearing bones for airles 5, 5 which are connected with main supporting and driving wheels 6, 6. lach side section 2 includes two separated elements 7' and 6 which entend horizontally, the upper element 7 being supported by end uprights 9 and 10. Preferably and as illustrated, each lower element 8 is provided with two aper tures'at 1l, 11 for supporting posts 12, 12, which at'their lower ends engage the bearing boxes and which at their upper ends engage springs located between the said elements? and 8. Preferably an upright tie element 13 connects the two members 7 and rate spring recesses. lit is preferred to provide springs lhl, 14 of the leaf type and when such springs are used supporting links are provided which engage lugs 15, l5 cast integrally on the side members. ily referring particularly to ltligs. 3 and 6, it will be noted that the elements and 8 are both channel-shaped, thev element 7 being inverted. 'lhe leaf springs 14C, 1d are so positioned that if necessary they can extend into the upper channel sections 'a'.

lin some cases it may be preferable to use coil springs 1d, as shown in lig. 7, instead of the leaf springs 1d as shown@` in the other figures. ln this case a post l2 is used/ and the upper end of the coil spring abats dh rectly against the upper trame element 7. 'llhe supnortlng lugs 15, 15 are omitted.

lin addition to the transverse end members 3, 3 already mentioned, there are provided other transverse members or cross-ties 16 and 17 which are preferably above the level ments 7, Z and the cross-ties 16, together with the supportingnarts therefor, constitute a central housing structure whichv projects upward above the main end parts of the frame. This housing structure is adapted to enclose the motors and may be provided with a top cover. lt will be noted that this housing structure while closednt one end (the left hand end as shown) is open at the other end. 'lhe opening at the last said end adapts the frame for the reception of an auxiliary mechanism which is preferably a cable reel mechanism such as is common on locomotives of this type. This cable reel mechanism constitutes no present Vpart of the invention, hutit is one of the constitute an operators station in which the electric controller and other devices within the control of the operator are located. At the opposite end of the'locomotive there is provided a comparatively low floor 23 and also a coveringwall`,24. A chamber is formed between the loor 22 and' cover 24 which may be utilized for resistance elements, storage batteries or other locomotive accessories.

Preferably as shown in Figs. l and 2, drawY heads 25, 25 are cast integrally with theend sections 3, 3. This is not essential, however, and in some cases it may bc preferable to provide separate draw-heads 25, 25a bolted in lace as shown in Figs. 4 and 5.

Pre erably two pairs of integrally cast sand boxes 26, 2G and 27, 27 are provided, these being arranged at the tour corners of the upward projecting housing'v structure, and being s0 arranged as to deliver sand onto the track rails in advance of the wheels.

It will be observed that these sand boxes tain links of the brake mechanism which is not shown. i

Preferably the structure of the frame is such that the necessary wiring for the motors and other electrical parts of the locomotive can be `carried inside of the frame and thus fully protected. Across the front of the locomotive is an inverted channel section 31 which not only provides increased strength tor supportin the cable reel mechanism already referre to, but also-provides space in which can be located the wires or conductors vextending from 4this cable reel mechanism.

As already stated, the longitudinal elements 8 of the side sections are channel-shaped and the wirescan also extend through these channel-shaped sections. They can also. extend vertically through the upright supporting maaar/4 the wiring can be carried to any part of the locomotive with the minimum of exposure.

What we claim is:

1. An integral cast frame for electric mine locomotives, comprising main side and end sections and also two cross ties between the side plates, each provided with a foot plate for partly supporting a motor.

2. An integral cast frame for electric mine locomotives, comprising main end and side sections, each side section having two separated horizontal channel-shaped elements with a horizontally elongated recess between them for a leaf spring and with a. recess below the lower vone for a bearing box.

3. An integral cast frame for electrictmine locomotives, comprising main end and-side sections, each side section having two separated horizontal elements with a vertical tie between them providing two separate horizontally elongated recesses for leaf springs, and each side section also having a bearing box recess below each spring recess, the said frame also comprising cross ties between the side plates, each provided with a foot plate for partly supporting a motor, two pairs of sand boxes located respectively in front of and behind the wheel positions and arranged to' discharge sand onto 'the track rails, and' trolley sockets at opposite sides.

.4.An integral cast :trame for electric mine locomotives, comprising main end and side sections, each side section having two sepa-ratedh'orizontal elements with a verf tical tie between them providing two separate horizontally elongated recesses for leaf springs, and each side section also having a bearing box recess below each spring recess, the said frame also comprising cross ties between the side plates, each provided with a foot plate for partly supporting a motor, two pairs of sand boxes located respectively in front of and behind the wheel positions and arranged to discharge sand onto the track rails, trolley sockets at opposite sides, and

draw heads formed integrally with the endsections.

HRNRY v. wiLLE. ROBERT M. CAMPBELL. WILLIAM J. ETHERiNGToN. 

